{"id":"CVE-2026-89437","title":"kernel: platform/x86: int1092: Fix potential memory leak in sar_probe() (CVE-2026-89437)","summary":"A flaw was found in the Linux kernel. The `sar_probe()` function, specifically in its error handling paths, fails to free memory allocated for `device_mode_info` by the `parse_package()` function, which is called by `sar_get_data()`. This …","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":"CWE-772","vendor":"Red Hat","product":"Linux","affected":["Linux >= dcfbd31ef4bcf6ceb373911faa4a5299e0547702 < 08dab7065f9369dd0a0aa740071bcd884c4848b0","Linux >= dcfbd31ef4bcf6ceb373911faa4a5299e0547702 < 582b82e573a059be9319bb16b84c45d0ef66f471","Linux >= dcfbd31ef4bcf6ceb373911faa4a5299e0547702 < 30c906cff490c3601ee9ff110fe8115fabe75fd4","Linux 5.15"],"published":"2026-09-11","updated":"2026-09-14","sourceUpdated":"2026-09-14T21:28:25+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89437.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89437.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89437"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532383"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89437"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89437"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89437.mbox"},{"url":"https://git.kernel.org/stable/c/08dab7065f9369dd0a0aa740071bcd884c4848b0"},{"url":"https://git.kernel.org/stable/c/582b82e573a059be9319bb16b84c45d0ef66f471"},{"url":"https://git.kernel.org/stable/c/30c906cff490c3601ee9ff110fe8115fabe75fd4"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00166,"epssPercentile":0.06251,"ingestedAt":"2026-09-14T15:23:07.454Z","slug":"CVE-2026-89437","body":"## Overview\n\nA flaw was found in the Linux kernel. The `sar_probe()` function, specifically in its error handling paths, fails to free memory allocated for `device_mode_info` by the `parse_package()` function, which is called by `sar_get_data()`. This oversight leads to a memory leak. Repeated occurrences of this flaw could exhaust system memory, potentially resulting in a Denial of Service (DoS) for the affected system.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89437.json)\n\n**kernel: platform/x86: int1092: Fix potential memory leak in sar_probe()** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-14.\n\nNot affected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 7\n- Red Hat Enterprise Linux 8\n- Red Hat Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\n## Remediation\n\nRefer to the advisory for fix availability.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":204119,"id":"CVE-2026-89437","ts":1789490231774,"field":"cvss","old":null,"new":"5.5"},{"seq":204118,"id":"CVE-2026-89437","ts":1789490231774,"field":"severity","old":"none","new":"medium"},{"seq":147305,"id":"CVE-2026-89437","ts":1789270208495,"field":"cvss","old":null,"new":"4.4"},{"seq":147304,"id":"CVE-2026-89437","ts":1789270208495,"field":"severity","old":"none","new":"medium"},{"seq":109058,"id":"CVE-2026-89437","ts":1789183730144,"field":"cvss","old":null,"new":"4.4"},{"seq":109057,"id":"CVE-2026-89437","ts":1789183730144,"field":"severity","old":"none","new":"medium"}]}